Respuesta :

Answer:

D. 1/5^(-7)

Step-by-step explanation:

ACCORDING TO THE LAW OF INDICES:

[tex] \frac{a {}^{n} }{a {}^{m} } = {a}^{n - m} [/tex]

So; 5^(-4)/5^3

=5^(-4)-3

=5^-7

OR,

1/5^7